1120642069 has 2 divisors, whose sum is σ = 1120642070. Its totient is φ = 1120642068.

The previous prime is 1120641997. The next prime is 1120642073. The reversal of 1120642069 is 9602460211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1098127044 + 22515025 = 33138^2 + 4745^2 .

It is a cyclic number.

It is not a de Polignac number, because 1120642069 - 2⁷ = 1120641941 is a prime.

It is a super-2 number, since 2×1120642069² = 2511677293625201522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1120642069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1120642079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560321034 + 560321035.

It is an arithmetic number, because the mean of its divisors is an integer number (560321035).

Almost surely, 2^1120642069 is an apocalyptic number.

It is an amenable number.

1120642069 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120642069 is an equidigital number, since it uses as much as digits as its factorization.

1120642069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1120642069 is about 33475.9924274098. The cubic root of 1120642069 is about 1038.6972312398.

The spelling of 1120642069 in words is "one billion, one hundred twenty million, six hundred forty-two thousand, sixty-nine".